In the slipstream of Luna, this everywhere-and-nowhere international name, with its attractive liquid sound, is popular in several European countries along with Hawaii.

Luana

Luane

Luanna

Luanne

Luce

Projects the calm and pristine image of the picturesque Swiss lake and mountain town. 

Lucerne

Lace-hankie name with Shakespearean pedigree. 

Lucetta

Lucette

Luci

Lucia is a lush, rich Latinate equivalent of Lucy, popular in Spain and throughout Latin America and also a cross-cultural favorite. You might be surprised to know that Lucia has ALWAYS ranked among the Top 1000 girl names in the US, though she's really taken off only since the turn of this century.
 
Derived from lux, the Latin word for light. Lucia is considered to be the feminine form of Lucius. Due to its connection to light, Lucia was traditionally given to babies born as daylight was breaking.
 
A variety of references include Santa Lucia, a fourth century martyr who was revered in the Middle Ages and the Caribbean island named for her, and the tragic opera Lucia di Lammermoor by Gaetano Donizetti.
 
Lucia has for several years ranked as the Number 1 name in Spain. It was chosen for their daughters by James Joyce, Mira Sorvino, Giovanni Ribisi, Mel Gibson, and Sasha Alexander and Eduardo Pointi, among others.

Lucia

Lushly elaborate name that makes Lucy more grownup and sensual.  Carnie Wilson chose it for her daughter.  Lucianus is an ancient Roman family name and Lucianus of Samosata was an early satirist.  Heard most often in the Italian and Spanish cultures, Luciana is usually pronounced loo-chee-anna.

Luciana

Pretty, delicate and crystal clear, with the readymade nickname of Lucy.

Lucida

The French spelling of Lucy feels particularly light and shimmery.

Lucie

Lucienne is a soft and ultra-sophisticated French-accented option in the Lucy family, one that could provide a fresh alternative to such fatigued Gallic choices as Danielle and Michelle.
 So if you're looking for a more elegant take on Lucy, this could be it. The original male Lucian is a Latin name while Lucien is the French form and Lucienne is a female spin on that.

Lucienne

A delicate name with an ancient pedigree, more appealing to some than Lucille.  It elaborates on Lucy and even Lucia and feels more distinctive than Lucinda. 




Lucilla

Lucille is a name that had long been overpowered by its link to Lucille Ball, with an image of tangerine-colored hair, big, round eyes, and a tendency to stage daffy and desperate stunts. But with the newfound craze for double-L names like Lily and Lila, Lulu and Luna, and as the choice of Lucille by hipster parents Maya Rudolph and Paul Thomas Anderson, Lucille is breaking free from its old clownish image, moving rapidly up the charts over the past decade after a long nap.
 Lucille has a history that far predates Lucille Ball and the 1950s. It was well used by Christians of the Roman Empire and began to be used in the U.K. and the U.S. in the nineteenth century, making it one of the most <a href="https://nameberry.com/list/322/classic-baby-names-for-girls">classic names for girls</a>. Reaching as high as Number 27 on the <a href="https://nameberry.com/popular-names">popular names</a> list of 1919—when there was a vogue for French sounding names like Marguerite and Genevieve—Lucille stayed in the Top 40 from 1906 to 1924. This was followed by an almost thirty-year slump starting in 1977, when it fell off the list completely, only to return in 2003.

Lucille

Lucina, deriving from Latin lucus "grove" and also associated with lux "light", is an epithet given in Roman mythology to the goddess Juno (and sometimes also Diana) in her role as goddess of childbirth. A stately and unusual route to Lucy, more delicate than Lucinda.

Lucina

Lucinda, an elaboration of Lucia created by Cervantes for his 1605 novel Don Quixote, is a pleasingly pretty alternative to Lucy. It was subsequently used by Moliere in his play The Doctor in Spite of Himself' (1666). More in tune with the times than Linda, Belinda and Melinda, it could be used to honor someone with one of those dated names. 
 Lucinda was a Top 200 name in the late nineteenth century, but hasn't been on the charts for more than 25 years--which could make her ripe for revival.
 One appealing namesake is country-rock-blues singer Lucinda Williams. Similar in feel: Lucilla and Lucetta.

Lucinda

Either an Armenian name meaning "moon" (also spelled Lusine) or an elaboration of sweet classic Lucy.

Lucine

Lucrecia

A pretty and plausible Latin name that's gotten a bad rap through the years via a link to Lucrezia Borgia, who, though long considered a demon poisoner, was actually a patron of learning and the arts.
 Lucretia is a U.S. First Lady name, borne by the wife of President James A. Garfield; a worthy namesake is Lucretia Mott, a Quaker abolitionist, and peace and women's rights advocate.
 In the Harry Potter saga, Lucretia Black Prewett is a pure-blood witch.

Lucretia

Lucrezia

A versatile classic, Lucy is both sweet and solid, a saint's name, and the heroine of several great novels. First fashionable in England and Wales, Lucy is now a popular choice in the US, The Netherlands, and New Zealand.
 
The English form of the Roman Lucia, Lucy derives from the Latin word lux, meaning “light.” Once given to girls born at dawn, Lucy is also associated with Saint Lucia, the patron saint of the blind.
 
Lucy has a wide range of namesakes, from the bossy friend in the Peanuts comic, to psychedelic "Lucy in the Sky with Diamonds," to the rash and zany heroine of I Love Lucy. 
 
It is a name with a rich literary history, chosen for the heroines of Charlotte Brontë’s novel Villette, E.M. Forster’s A Room With A View, Jamaica Kincaid’s Lucy, and C. S Lewis’s The Chronicles of Narnia - just to name a few. 
 
Beyond fiction, Lucy Stone was an important American activist, Lucy Worsley is a successful author and historian, and Lucy Lui is an actress who has imparted strength and style to the name.
 
Simple but sophisticated, playful but grounded, it is no wonder Lucy is a popular choice. Given to over 4000 girls in the US each year, it is a classic that doesn’t feel dusty.
 
If you love Lucy, but don’t love its popularity, you could consider one of its many variants. From vintage Lucille, to the musical Lucetta, to the fresh, unexpected Lux; from nickname-y Lou to sleek Luciana, there are plenty of possibilities.

Lucy

Lucya

Luella is a sleeker spelling variant of the <a href="https://nameberry.com/girls-names">girls' name</a> Louella and is now more popular than the original. Sweet, but lively, it was a popular name in the the early 19th century, but fell out of favor in the 50s. Now, after a 60 year absence, it's back in the charts, in the US and the UK. 
 
A smoosh name that combines Lou- from Louisa with the popular ending -ella, the name could have some lofty meanings such as 'battle famous fairy maiden", "goddess of battle", "she who is glorious in war" or "renowned warrior of light", depending on which etymological root you follow. 
 
The blend of classic sounds in Luella come together to make a name that feels stylish and fresh but also vintage. Given to just under 300 girls each year, it could also work as an alternative for the popular Eloise.

Luella

Lula is one of the livelier nickname-names with the fashionable double-L sound: It joins Lulu, Lila, Lily, and Lou among the trendiest names today. Lula might be short for Talula and sisters or for Lucy or Louise, or may stand on its own two adorable feet. Lula was actually a Top 50 name in the late 1880's and continued in the Top 100 for a couple of decades more.
 Bryan Adams named his second daughter Lula Rosylea, sister of Mirabella Bunny, and master character namer J. K. Rowling has a Lula in her novel The Cuckoo's Calling.

Lula

One of the few Lu- names that you've probably never heard of, Lulie could prove a good alternative for Luna, Lucy, and Lula.

Lulie

Lula has a firecracker personality, a singing and dancing extrovert. Interesting that Lulu was a Top 100 name when the Social Security list was born in 1880, but it's been sliding ever since and has not been in the Top 1000 for decades. Modern parents in love with Lulu might well reverse that trend.
 Lulu is the now grown daughter of musicians Edie Brickell and Paul Simon. In the Swinging London sixties, Lulu was a popular single-named Scottish singer--whose birth name was Marie.

Lulu

paulapuddephatt's list "Lucy and related names" of 28 great name ideas: Luana - Lulu!